TY  - BOOK
AU  - Petrushev P P
AU  - Popov V A
TI  - Rational approximation of real functions
SN  - 0-521-33107-2
U1  - 515.8 
PY  - 1987///
CY  - Cambridge
PB  - CUP
KW  - Approximation theory
KW  - Functions of real variables
ER  -